diff --git a/sys/unix/hints/include/compiler.370 b/sys/unix/hints/include/compiler.370
index ae3dc8d19..62486d3ad 100755
--- a/sys/unix/hints/include/compiler.370
+++ b/sys/unix/hints/include/compiler.370
@@ -90,7 +90,6 @@ CFLAGS+=-Wimplicit-fallthrough
 #ifeq "$(GCCGTEQ12)" "1"
 #endif
 #ifeq "$(GCCGTEQ14)" "1"
-CFLAGS+=-std=gnu23
 #endif
 # end of gcc-specific
 else   # gcc or clang?